发霉 + 的 + Noun
发霉 means 'moldy' or 'to go moldy,' describing something that has developed mold. It is used as an adjective before nouns with 的, or as a verb to indicate that something has become moldy due to moisture or age.
衣柜里的衣服放太久都发霉了。
Yīguì lǐ de yīfu fàng tài jiǔ dōu fāméi le.
The clothes in the wardrobe have gotten moldy from being stored too long.
下了一个月的雨,墙角开始发霉了。
Xià le yī gè yuè de yǔ, qiángjiǎo kāishǐ fāméi le.
After a month of rain, the corners of the walls have started to get moldy.
发霉的面包千万不能吃,会拉肚子。
Fāméi de miànbāo qiānwàn bù néng chī, huì lā dùzi.
You must never eat moldy bread, or you'll get a stomachache.